Prep the banana: If you like a thicker, milkshake-like texture, peel and freeze the banana in chunks ahead of time.
Fresh bananas work too.
Add liquids first: Pour the milk into your blender. This helps the blades spin smoothly and prevents clumps.
Layer the rest: Add the banana, Greek yogurt, oats, peanut butter, protein powder, cinnamon, and a pinch of salt. If using honey and ice, add them now.
Blend until smooth: Start low, then increase to high for 30–45 seconds.
Scrape the sides if needed and blend again until creamy.
Adjust texture: Too thick? Add a splash more milk. Too thin?
Add a few ice cubes or an extra spoon of oats and blend again.
Taste and tweak: For more sweetness, add a touch of honey. For more banana flavor, add a few extra slices if you have them.
Serve right away: Pour into a chilled glass or shaker bottle. Top with a sprinkle of cinnamon or crushed oats if you like.